xtmIfInfoMaxClasses 1.3.6.1.4.1.838.3.2.1.1.1.6

The maximum number of classes that may be added to this interface, including classes added by operators at the command line console or browser, and classes added to the system automatically, as a result of flow detection. After the number of classes present on the interface matches the value that this object has been set to, no more classes can be created. The value of this object can not be set below the current number of classes. For example, if you currently have 100 classes on cbq.1 and you with to have a maximum of 50 classes you must delete 50 classes before setting this object to 50.